Invention Grant
US08908328B2 Perpendicular magnetic write head and magnetic recording device having additional magnetic layer contacting front yoke and shield 有权
垂直磁写头和磁记录装置具有接触前磁轭和屏蔽的附加磁性层

Perpendicular magnetic write head and magnetic recording device having additional magnetic layer contacting front yoke and shield
Abstract:
A perpendicular magnetic write head includes: a magnetic pole having an end surface exposed on an air bearing surface, and extending in a height direction perpendicular to the air bearing surface; a first yoke having an end surface exposed on the air bearing surface, and facing a forward section of the magnetic pole with a gap layer in between; a second yoke located behind the first yoke with an insulating layer in between in the height direction, and connected to a backward section of the magnetic pole; a shield connecting the first yoke to the second yoke; and an additional magnetic layer located behind a boundary between the first yoke and the insulating layer, and in contact with the first yoke.
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